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@uiten tartes @anni ,ffivw EDWARD ATKINSON, 0F WRIGHTSTOWN, PENNSYLVANIA..

Leners Parent No'. 76,375, dated April 7, 186s.

IMPROVED ROOF.

@te Srlgehiile referat tu in time gtrttirt' htriit mit milking part ai its smic.

To A LL .WHoM 1T MAYcoNcERN;

Be it known that I, EDWARD ATKINSON, of Wrightstown, Buclis county, Pennsylvania, have invented an Improved Roof;v and I d o hereby declare the following to be a full, clear, and exact description of the same.v

My invention consists of a `combination of slats, andoi' cement and felt applied to the said slats, substantially in the manner hereinafter described, composing an improved roo-f, in which the` disadvantages' hitherto attending the employment of felt for roofing purposes are entirely obviated. I

In order to enable others skilled in the' art to make my invention, I will now proceed to describe its conu 1 l 7 n c v l u struction, reference being had to the accompanying drawing, which forms a part of this specification, and in which- Figure lirepresents my improved roof in section.

Figure 2 is an inverted plan view; and p Figure 3 an enlarged sectional view;

A A A A, iig. 1, represent stringers or rafters, foriningn framework, upon which are secured lathes or shits of wood, a; B B BB, iig. 2, beingv Vcross-beanie placed at suitablel intervals across the stringcrsA, so as to impart additional rigidity to the structure. The lathes a may be placed in contact with each other, or at intervals, as illustrated in fig. 1, and he arranged ,iii adirection paralleler at right angles to that of the stringere A, as shown in fig. 2. v A-coating or layer, b, of any'siiitable cement 'is placed upon the lathes lar :ind upon this cement, while in a plastic state, is placed a coating of ordinary rooiing-felt, c, which-is thus firmly secured to, or, -zis it were, incorporated with the coment, the felt being then covered with another coating of cement, d.V

It. has hitherto been customary, whore felt-roofing has been employed, to attach felt directlyto the woodvwork ofV the rooi` by nailing, the felt beingtlien covered with cement. toot's thus composed are very likely to become leaky by the slightest warping or shrinkage oi' the woodwork, to which the felt is secured, the latter being very easily torn, especially atthepoints where nailed. The felt in tearing carries with it the coating ot' cement, and thus the interior wood-work is exposed, and leakage is the result. By my invcntionthis disadvantage is entirely obviated, the coating of cement, which intel-venes between the wood-work and the felt, to some extent resisting, and to some extent accommodating itseli` to the shrinkage orwarping of the wood-work, and thereby preventing any exposure of the same, while, at the saine time, it permanently and eiectually secures the felt.

I claim as my invention, and desretosecure by Letters Patentel A rooi`,vconsisting of slats covered with layers of cement, between which isint'erposcd a sheet of felt, substantially as described.

Intestimony whereof, Iliave signed my naineto this specification ir the presence of two 'subscribing witnesses.

EDWARD ATKINSON.

Witnesses:

C. N. GRIFFIN, A. JAMESON. 

